Adjusting means for drop hammers



Aug. 17 1926. I

. E. w. MERRILL ET AL ADJUSTING MEANS FOR DROP HAMMER Filed Sept. 14,1923 Z I 7 ATTORNEYS Patented Aug. 17, 1926.

UNITED T ES tseaei? Pam-mi? j sense.

EDWARD W. MERRILL, or BRooKLYN, NEW YORK," arm HOWARD TERHUNE, or

MASSILLON, OHIO, ASSIGNORS TO MERRILL sacs, or MASPETH, NEW YORK, A

CORPORATION OF YORK.

ADJUSTING MEANS non mm mamas.

Application filed. September 14, 1923. Serial No; 6 2,626.

In drop hammers where it is. frequently necessary to adjust the diesfrom front to back in the hammer this adjustment has been accomplishedheretofore by loosening the die dowel in either the upper or'lower dieand then filling in with shims from front to back, which means is, atbest, very crude and unsatisfactory; being hard to hold in place underthe severe jars to which the parts are subjected. The dies, due to thedistortion of the metal caused by careless machining, either in planingthe dovetail or in sinking impression or from other causes,arefrequently out of parallel from front to back, forming a twist orwind which it is also necessary to overcome.

The object of our invention is to produce a novel means for readily andaccurately adjusting the die in the shoe or anvil cap, .to the front orrear and for compensating for the twist or wind in the die, said meanscomprising generally the die adjusting block and the compensating blockarranged to be brought into coaction with the opposite sides of the dietogether with the proper shims and shoe die key.

A practical embodiment of our invention is represented in theaccompanying drawings. in which Fig. 1 represents in horizontal sectiona portion of a drop hammer showing in plan our improved die adjustingmeans.

Fig. 2 represents a detail front view of the same.

Fig. 3 represents a detail section taken in the plane of the lineIII-III of 1.

The die 1 is represented in dotted lines.

The die adjusting block 7 has an angular i wall 8 corresponding to theangular wall 5' of the groove 4. The opposite wall 9 of the dieadjusting block is straightand continuous except for the usual dieengaging lug 10.

The block for compensating for the twist or Wind in the die is denotedby ll and its "corresponds with the curved side wall 6 of the groove 4:in the shoe or anvil cap. The opposite side 13 of this compensatingblock is straight and continuous and is adapted to engage one side ofthe die key 14, the other side of which key is arranged to engage thedie 1.

To adjust the die to the front or rear, a thin shim is placed betweenthe corresponding side walls of the die adjusting block and the groovein the shoe or anvil cap, either to the rear or the front of the apex ofthe angle, as the case may be. With the degree of angularity shown inthe accompanying drawings this adjustment will move the die engaging lugeither to the front or to the rear more than double the thickness of theshim. The die key is then driven home and the die Securely held.

When there is a twist or windin the die. this can be compensated for byputting steel shims or equal between the correspond ing walls of the dieadjusting block and groove, and the key driven home. it being understoodthat the curved wall engagement between the'compensating block and itscorresponding side wall of the groove will bring the die intoparallelism by the slight longitudinal movement of said comnovel meansfor not only adjusting the die to the front and rear, but alsoforcompensating for any twist or wind in the die, the die being securelyheld in its adjusted position against displacement by the shims incidentto the operation of the hammer.

It is evident that various changes may be resorted to in the form.construction and arrangement of the several parts without departing fromthe spirit and scope of our invention: hence, we donot wish to belimited to the particular embodiment herein shown and described, but

What we claim is 1. Die adjusting means including a shoe or anvil caphaving a die receiving grooveacross its face. a die adjusting block forin sertion between the die and one wall of the groove. and acompensating block and die key for insertion; between the die and theing Walls of the die adjustment block and groove being angular andadapted to receive shims therebetWeen either to the front or rear of theapex to shift the die to the rear or front respectively.

2. Die adjusting means including a shoe or anvil cap having a diereceiving groove across its face with undercut opposite side Walls, adie adjusting block for insertion between the die and one Wall of thegroove,

and a compensating block and die key for insertion between the die andthe opposite therebetween either to the front orrear of the apex toshift the die to the rear or front respectively.

In testimony, that We claim the foregoing as our invention, we havesigned our names 20 this 16th day of June 1923 EDWARD W. MERRILL. HOWARDTERHUNE,

